Porua: How Does Your Garden Grow? is a short story written by Agatha Christie. Its plotline is nearly identical with that of Dumb Witness. Anyone who has enjoyed Dumb Witness may want to check this short story out.

A really really good one. Poirot recieves a letter but the recipient has died two months ago. Was she murdered? This was very clever, I think I missed just about every clue and had no idea who the murderer was. Excellent treat.

I really enjoyed this story. The first time I read it, I actually listened to Hugh Fraser read it to me. Brilliant story and excellent delivery by Fraser. The story has a more supernatural bent to it than Christie's other works. ( )

Wikipedia in English (1)

Miss Emily was old, rich, and afraid--and now, she's dead. Her terrified plea to Hercule Poirot came a little too late. All that's left is a house full of greedy heirs, and a very strange letter that could solve the mystery--or add to it.

As Hercule Poirot sifts through his post one particular morning, he alights upon a letter from an elderly and (as it transpires) exceedingly rich spinster--Miss Emily Arundell. She is clearly in great distress and seeking his help, but doesn't say why. Her only specific mention is "the incident of the dog's ball." However, what intrigues Poirot is the date of the communication--it was written two months ago. He persuades Captain Hastings that they must visit the lady with all haste. On arrival, they discover that she has died, apparently of natural causes. But Bob, Miss Arundell's devoted wire-haired terrier, knows better. And so, soon, does Poirot.… (more)